refactor: Add missing {} around error() calls

This is required for the next commit to be correct.

Author: MarcoFalke

src/index/blockfilterindex.cpp

@@ -159,7 +159,9 @@ bool BlockFilterIndex::ReadFilterFromDisk(const FlatFilePos& pos, const uint256&
     std::vector<uint8_t> encoded_filter;
     try {
         filein >> block_hash >> encoded_filter;
-        if (Hash(encoded_filter) != hash) return error("Checksum mismatch in filter decode.");
+        if (Hash(encoded_filter) != hash) {
+            return error("Checksum mismatch in filter decode.");
+        }
         filter = BlockFilter(GetFilterType(), block_hash, std::move(encoded_filter), /*skip_decode_check=*/true);
     }
     catch (const std::exception& e) {

src/netbase.cpp

@@ -364,8 +364,9 @@ bool Socks5(const std::string& strDest, uint16_t port, const ProxyCredentials* a
             // Perform username/password authentication (as described in RFC1929)
             std::vector<uint8_t> vAuth;
             vAuth.push_back(0x01); // Current (and only) version of user/pass subnegotiation
-            if (auth->username.size() > 255 || auth->password.size() > 255)
+            if (auth->username.size() > 255 || auth->password.size() > 255) {
                 return error("Proxy username or password too long");
+            }
             vAuth.push_back(auth->username.size());
             vAuth.insert(vAuth.end(), auth->username.begin(), auth->username.end());
             vAuth.push_back(auth->password.size());
@@ -429,7 +430,9 @@ bool Socks5(const std::string& strDest, uint16_t port, const ProxyCredentials* a
             recvr = InterruptibleRecv(pchRet3, nRecv, g_socks5_recv_timeout, sock);
             break;
         }
-        default: return error("Error: malformed proxy response");
+        default: {
+            return error("Error: malformed proxy response");
+        }
         }
         if (recvr != IntrRecvError::OK) {
             return error("Error reading from proxy");

src/script/signingprovider.cpp

@@ -157,8 +157,9 @@ bool FillableSigningProvider::GetKey(const CKeyID &address, CKey &keyOut) const
 
 bool FillableSigningProvider::AddCScript(const CScript& redeemScript)
 {
-    if (redeemScript.size() > MAX_SCRIPT_ELEMENT_SIZE)
+    if (redeemScript.size() > MAX_SCRIPT_ELEMENT_SIZE) {
         return error("FillableSigningProvider::AddCScript(): redeemScripts > %i bytes are invalid", MAX_SCRIPT_ELEMENT_SIZE);
+    }
 
     LOCK(cs_KeyStore);
     mapScripts[CScriptID(redeemScript)] = redeemScript;

src/validation.cpp

@@ -2830,8 +2830,9 @@ bool Chainstate::DisconnectTip(BlockValidationState& state, DisconnectedBlockTra
     {
         CCoinsViewCache view(&CoinsTip());
         assert(view.GetBestBlock() == pindexDelete->GetBlockHash());
-        if (DisconnectBlock(block, pindexDelete, view) != DISCONNECT_OK)
+        if (DisconnectBlock(block, pindexDelete, view) != DISCONNECT_OK) {
             return error("DisconnectTip(): DisconnectBlock %s failed", pindexDelete->GetBlockHash().ToString());
+        }
         bool flushed = view.Flush();
         assert(flushed);
     }
@@ -4358,12 +4359,15 @@ bool TestBlockValidity(BlockValidationState& state,
     indexDummy.phashBlock = &block_hash;
 
     // NOTE: CheckBlockHeader is called by CheckBlock
-    if (!ContextualCheckBlockHeader(block, state, chainstate.m_blockman, chainstate.m_chainman, pindexPrev))
+    if (!ContextualCheckBlockHeader(block, state, chainstate.m_blockman, chainstate.m_chainman, pindexPrev)) {
         return error("%s: Consensus::ContextualCheckBlockHeader: %s", __func__, state.ToString());
-    if (!CheckBlock(block, state, chainparams.GetConsensus(), fCheckPOW, fCheckMerkleRoot))
+    }
+    if (!CheckBlock(block, state, chainparams.GetConsensus(), fCheckPOW, fCheckMerkleRoot)) {
         return error("%s: Consensus::CheckBlock: %s", __func__, state.ToString());
-    if (!ContextualCheckBlock(block, state, chainstate.m_chainman, pindexPrev))
+    }
+    if (!ContextualCheckBlock(block, state, chainstate.m_chainman, pindexPrev)) {
         return error("%s: Consensus::ContextualCheckBlock: %s", __func__, state.ToString());
+    }
     if (!chainstate.ConnectBlock(block, state, &indexDummy, viewNew, true)) {
         return false;
     }
@@ -4591,7 +4595,9 @@ bool Chainstate::ReplayBlocks()
 
     std::vector<uint256> hashHeads = db.GetHeadBlocks();
     if (hashHeads.empty()) return true; // We're already in a consistent state.
-    if (hashHeads.size() != 2) return error("ReplayBlocks(): unknown inconsistent state");
+    if (hashHeads.size() != 2) {
+        return error("ReplayBlocks(): unknown inconsistent state");
+    }
 
     m_chainman.GetNotifications().progress(_("Replaying blocks…"), 0, false);
     LogPrintf("Replaying blocks\n");